HttpException: Connection closed while receiving data

[chaichin]

final onvif = await Onvif.connect();
I use easy_onvif v1.0.6 to connect to a huawei camera IP.
Just by running these few lines of code to connect to the camera. It prompts me the below exception, any solution for this issue?

Exception has occurred.
_Exception (Exception: DioError [DioErrorType.other]: HttpException: Connection closed while receiving data, uri = http://192.168.0.99/onvif/device_service
Source stack:
#0 DioMixin.fetch (package:dio/src/dio_mixin.dart:488:35)
#1 DioMixin.request (package:dio/src/dio_mixin.dart:483:12)
#2 DioMixin.post (package:dio/src/dio_mixin.dart:97:12)
#3 Soap.send (package:easy_onvif/src/soap.dart:24:28)
#4 Soap.retrieveEnvlope (package:easy_onvif/src/soap.dart:50:37)
#5 DeviceManagement.getSystemDateAndTime (package:easy_onvif/src/device_management.dart:160:33)
#6 Onvif.initialize (package:easy_onvif/src/onvif_base.dart:60:46)
#7 Onvif.connect (package:easy_onvif/src/onvif_base.dart:40:17)
#8 _MyHomePageState.connectCamera (package:camera_huawei_test/main.dart:69:31)
#9 _MyHomePageState._incrementCounter (package:camera_huawei_test/main.dart:64:11)
#10 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:1005:21)
#11 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:198:24)
#12 TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:613:11)
#13 BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:298:5)
#14 BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:269:7)
#15 GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:157:27)
#16 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:449:20)
#17 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:425:22)
#18 RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:329:11)
#19 GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:380:7)
#20 GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:344:5)
#21 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:302:7)
#22 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:285:7)
#23 _rootRunUnary (dart:async/zone.dart:1442:13)
#24 _CustomZone.runUnary (dart:async/zone.dart:1335:19)
#25 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1244:7)
#26 _invoke1 (dart:ui/hooks.dart:170:10)
#27 PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:331:7)
#28 _dispatchPointerDataPacket (dart:ui/hooks.dart:94:31)
)

[faithoflifedev]

Hello @chaichin, I just published v1.0.8 which adds logging capabilities to the package. I recommend that you run the "flutter_model" example project and then supply the log file produced.

If the log file identifies a problem with the code I'll be happy to do what I can to fix it. Otherwise, if it's a specific issue related to supporting your specific device (Huawei camera), I may not be able to help.

Unfortunately I only have a few camera models to test with, so I can't guarantee functionality beyond those few models.

[faithoflifedev]

Hi @chaichin , v1.0.9 has been published and fixes a number of bugs identified when testing against different manufacturers Onvif devices. Let me know if this resolves your issue.

[chaichin]

hi @faithoflifedev I was able to connect and get the model details. However, it works randomly as sometimes i trigger the connection it returns me the model result and sometimes it throws me the same exception.

[chaichin]

[ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: FormatException: Invalid double
E/flutter ( 9823): -INF

I received this error upon calling this function : var profiles = await onvif.media.getProfiles();

[faithoflifedev]

Hello @chaichin , you would need to supply the log output for me to help with this? Most likely there is a value in the XML response from the Onvif device that is causing an issue in the code.

[faithoflifedev]

#32 speaks to this issue